Tobacco pipe construction



March "16, 1937. A. VOGEL TOBACCO PIPE CONSTRUCTION Filed Nov. 18, 193317712622502" HLBKFTL. V0EL N W) W Patented Mar. 16, 1937 UNITED" STATESactress PATENT. OFFICE 11 Claims.

This invention relates to a tobacco pipe, such as ordinarily used forsmoking tobacco.

It is an object of this invention to provide a structure of pipe whichin use will have a very effective draft and which is arranged so thatthe tobacco will be uniformly burned in all parts of the tobaccoreceiving chamber.

It is a further object of the invention to provide a pipe which can bevery easily cleaned and which is also so constructed that there will bevery little residue left in the pipe after it has been used.

It is another object of the invention to provide a pipe structurecomprising a bowl having a stem projecting therefrom and'having atobacco receiving chamber therein, said bowl having a small annulargroove thereabout substantially at the bottom of said chamber, a tubularmember disposed in said stem extending to said groove and having aportion projecting into said bowl above the bottom thereof from saidgroove and forming a shield whereby said groove in efiect extends undersaid portion.

It is still another object of the invention to provide a tobacco pipecomprising a bowl havin a stem projecting therefromand having a tobaccoreceiving chamber therein, a mouthpiece arranged to form a continuationof said stem and having a small draft passage therethrough, a tubularmember preferably of metal having one end permanently secured in saidmouthpiece and insertable into said stem, the same extending throughsaidstem to said chamber and having a part extending into said chamberspaced from the bottom thereof and forming a shield.

These and other objects and advantages of the invention will be fullyset forth in the following description made in connection with theaccompanying drawing, in which like reference characters refer tosimilar parts throughout the several views and in which:-

Fig. 1 is a central vertical section through the Fig. 2 is a top planview of the pipe shown in Fig. 1;

Fig. 3 is a transverse vertical section taken on line 33 of Fig. l asindicated by the arrows;

Fig. 4 is a perspective view of a part used; and

Figs. 5 and 6 are perspective views of modifications of the part shownin Fig. 4.

Referring to the drawing, a pipe is shown comprising a bowl in having astem portion Illa projecting therefrom and secured thereto, said stembeing shown as integral with said bowl. Bowl I0 has a chamber 19btherein adapted to receive I chamber 10b an annular groove I00 extendingthereabout, the same being shown as of substantially semi-circular formin cross section. A comparatively large bore or passage llld extendsoutward. from chamber Ito and groove H10 substantially centrally of stemIlla. At some distance from chamber lflb the passage or bore in stemN10. is enlarged as shown at lllg thus providing a shoulder Mic. Thechamber lllb is'shown as having a small semi-spherical depression Incentrally of its bottom. When passage Illd is bored the drill continuesthe bottom of bore Hid inwardly to depression It. .A mouthpiece II isprovided, the same forming a continuation of stem la and having itssides flush with the sides of stem lfla. Mouthpiece H has acomparatively small draft passage I la extending centrally therethrough.Said mouthpiece is bored and threaded at its inner end to receive athreaded end 1201; of a tubular member l2 preferably made of metal, suchas aluminum or steel. Member 12 has a comparatively small draft passagel2b therethrough alined with and forming a continuation of draft passageIla. Member l2 has spaced collars I20 and l2d thereon of larger diameterthan the other portions of said member. Inner collar 12d abuts againstshoulder llie and member I2 has a portion lZe extending inwardly fromcollar i201, which portion is threaded into passage ltd. Portion I26terminates substantially at the outer edge of groove I00 and has aportion l2f projecting into the chamber lllb, said portion l2f extendingfrom the top of portion He and the same has its inner end curveddownwardly. It will be noted that the sides of portion l2) arehorizontally alined substantially with the axis of passage I2b. It willalso 'be noted that since portion l2e terminates at the outer edge ofgroove IBC, said groove in eifect extends under the portion I2 It willalso be noted that there is an annular chamber in stem Illa about themember l2 between collars I20 and lZd.

In operation, when the mouthpiece II is to be removed from bowl I0 andstem Illa, the same will be rotated and member I2 will unscrew from thebowl ID at the portion I26. After portion He leaves the bore or passageHid, member l2 can be withdrawn rectilinearly from the stem. The partscan be reassembled by again inserting member l2 in the stem and screwingportion He Cal into passage Ind until collar I2d abuts shoulder IUe.Shoulder Inc is provided to form a stop engaged by collar I2d todetermine the longitudinal position of member I2. With the pipeassembled, tobacco is placed as usual in chamber I01; and lighted. Theair will be drawn downwardly through the tobacco and through the draftpassages I2b and Ila. The groove Iiic affords a passage for aircompletely around the chamber Iflb at its bottom and this air canreadily pass beneath portion I2 and into the end of passage I2b. Theportion I2 forms a shield preventing pieces of tobacco from being drawninto the draft passage I2b. At the same time air can pass in groove I0cbeneath member I2 f and into passage I 212. The groove thus cooperateswith the shield I2 in affording a passage of air into the draft passageI2b. The air being drawn into groove I 00 causes a uniform downwarddraft around the wall of chamber Illb and causes a desirable and uniformburning of the tobacco. Any liquid collecting in the bottom of chamberIiib can not pass out except through draft passage I2b since thethreaded portion I2e prevents the passage of any liquid therepast. Whenmouthpiece II and member I2 are withdrawn as above described, the draftpassages can be easily and quickly cleaned. It has been found inpractice that very little liquid collects in the bottom of the chamberIOb. The temperature at this point as is well known, is quite high andthe metal in member I2, particularly portions I 2e and I2), have theeffect of evaporating any liquid. When mouthpiece II and member I2 are rremoved, portion I2 can be used as a scraper to scrape any carbon orashes which have been deposited on the walls of chamber Illb. Theannular chamber around member I2 between collars I20 and I2d tends tokeep the stem Ilia cool. It will also be noted that the outer side ofcollar I20 is flush with the outer end of stem Illa and a tight fit isthus had between the outer end of the stem and the inner end ofmouthpiece I I.

In Fig. 5 a modified form of the invention is shown. A member I4 quitesimilar to member I2 is shown and the same has collars I40 and I 4dthereon. Member I4 has a threaded portion I ia similar to portion I2awhich is threaded into the mouthpiece I6. Said mouthpiece has the draftopening I6a therethrough which is alined with the draft opening throughmember I 4. Mouthpiece I 6 has a reduced terminal portion IBb forming anannular shoulder I60. This reduced portion IE1) is of the same diameteras collar I 40 and said reduced portion and collar fit into the end ofstem Illa with a tight fit. These parts form the tenon which holds thestem and mouthpiece together. Member I4 has the portion I4ecorresponding to the portion I2e of member I2, but the same has a smoothperiphery and when member I4 is used passage I 0d will have a smoothwall and portion He will fit snugly therein. Member I4 also has theportion I4f similar to portion I2 but shown as somewhat longer. PortionI4 will extend past the center of the bowl chamber I01) and its terminalend will substantially contact with the bottom of chamber IDb. It willbe seen that when member I4 is used the mouthpiece I6 in member I4 canbe drawn rectilinearly from the stem I 0a. There are no threads tounscrew and as stated the parts are held together by the frictionalengagement of portion I61) and collar M0 in the stem Iila as well as bythe friction of portion Me in passage Ifld.

In Fig. 6 a member I5 is shown which may be used in place of member I2.Member I5 has the portion I 5a which will be threaded into themouthpiece II as is the portion I2a. Member I5 has the spaced collars I50 and I 5d. Collar I50 will fit into the end of the stem as does collarI2c but is much longer so that it will have additional friction to holdthe mouthpiece and stem together. Portion I5e like portion Me has asmooth periphery and will fit into the smooth passage Ind. Portion I 5is similar to portion I21. When member I5 is used it will be seen thatmouthpiece II and said member may be drawn rectilinearly from stem Illa,the parts as stated being held together by the friction of portions I50and I5e in their respective passages in stem Illa.

From the above description it is seen that applicant has provided a verysimple and efficient structure of pipe. The tobacco is evenly burned asabove explained due to the downward draft along the wall of chamber IOb,the air passing into groove I 00 and then into the member I2. Any airwhich passes down through the tobacco can also pass under member I2,fand into passage I271. The moisture which collects in the bottom ofpipes is caused chiefly by condensation of moisture in the atmosphere orin the tobacco. The moisture carried in the heated air near the bottomof the tobacco receiving chamber ordinarily passes into the stem and iscooled so that moisture is precipitated. With the present structure theheat from the bottom of the bowl is absorbed by member I2 and portionsI2 and I2e thereof. Member I2 is thus heated and when the moisture ladenair passes thereinto condensation does not occur. Very little moisturetherefore collects in the pipe of this invention. The threaded portion I2e prevents any moisture which might form from passing back into passageIilg. The parts are easily disassembled and the draft passage can bevery readily and easily cleaned by passing any sort of swab or cleanerthrough the passages I21) and Ila. The parts of the device are few andeasily made and assembled. The pipe has been amply demonstrated inactual practice, found to be unusually eflicient and satisfactory to thesmoker and has been enthusiastically received by quite a few smokers.

It will, of course, be understood that various changes may be made inthe form, details, a1- rangement and proportions of the.parts, withoutdeparting from the scope of applicants invention, which generallystated, consists in a device capable of carrying out the objects aboveset forth in the parts and combinations of parts disclosed and definedin the appended claims.

What is claimed is:

1. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to aline with and form a continuation ofsaid stem and having a small draft passage therethrough, a chamber insaid bowl for receiving tobacco, said bowl having an annular groovethereabout substantially at the bottom of said chamber and having acomparatively large passage extending from said chamber and groove intosaid stem, a tubular member secured in said mouthpiece having a smalldraft passage therethrough alining with and forming a continuation ofthe draft passage in said mouthpiece, said member extending through saidstem and having a portion fitting in said first mentioned passage, saidportion having a shield-forming arranged to form'a' continuation of saidstem and having a comparatively small draft passage therethrough, "achamber in' said bowl for'receiving tobacco; acomparatively largepassage extending'from said chamber into said stem and a larger pass ageextending outward in said stem some distance -froin' said chamberforming a shoulder with said last mentioned passage and a tubular membersecured in said mouthpiece insertable in said stem, the same having acomparatively small draft passage therethrough alining with said draftpassage in said mouthpiece, said member having a shoulder thereonfitting against said shoulder to form a stop and having a portionfitting in said first mentioned passage and extending inwardly from saidshoulder to said chamber and having a portion projecting into said bowland spaced from the bottom thereof.

3. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to form a continuation of said stem andhaving a comparatively small draft passage therethrough, a chamber insaid bowl for receiving tobacco, a comparatively large passage extendingfrom said chamber into said stem and a tubular member secured in saidmouthpiece having a comparatively small draft passage therethroughalined with and forming a continuation of said draft passage in saidmouthpiece, said member being insertable in said stem and having aportion extending through and fitting in the outer portion of said lastmentioned pas sage and having a portion threaded into and extendingthrough the inner portion of said last mentioned passage, said memberhaving a stop means thereon engaging said stem to limit its inwardmovement and having a portion projecting into said bowl above the bottomthereof forming a shield.

4. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to form an extension of said stem andhaving a comparatively small draft passage therethrough, said bowlhaving a chamber therein for receiving tobacco, a comparatively largepassage extending from said bowl into said stem and a tubular metalmember having a threaded terminal portion screwed into and carried bysaid mouthpiece, said member having a comparatively small draft passageextending therethrough G0 alined with and forming an extension of saiddraft passage in said mouthpiece, said stem having a larger passagetherethrough adjacent its outer edge forming a shoulder, spaced collarson said member, one of which fits against said shoulder to form a stopand the other of which is disposed at the outer end of said stem, saidmember having a threaded portion extending inwardly from said shoulderfitting in said second mentioned passage, the same acting to prevent thepassage of any liquid outwardly to said larger passage and a portionprojecting from the upper side thereof into said bowl and spaced fromthe bottom of said bowl.

5. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece 7 member. i

arranged to"for 1n' a' continuation of said stem and having "acomparatively small draft passage therethrough, a chamber in said bowlfor receiving tobacco, a comparatively large passage extending from saidchamber into said stem and a tubular member secured in said mouthpiecehaving a comparatively small draft passage therethrough alined with'andforming a continuation 'ofsaid draft passage in said mouthpiece, saidmember being insertable in said stem and having 'a portion extendingthrough and fitting said second mentioned passage, stop means on said-m'ember engaging said stem to limit the inward movement thereof, saidmember having a portion projecting into said bowl forming a shieldand'adaptedi-to conduct heat to said 6. A pipe structure having incombination, a bowl with a stem attached thereto, a mouthpiece arrangedto aline with and form a continuation of said stem and having a smalldraft passage therethrough, a chamber in said bowl for receivingtobacco, said bowl having an annular groove thereabout substantially atthe bottom of said chamber and having a passage extending therefrom intosaid stem, a member extending through said stem having a small draftpassage therethrough and having a portion closely fitting into said lastmentioned passage but terminating at said groove, and having a secondportion extending above said groove into said bowl and shielding theopening into the passage therein whereby air may be drawn down aroundthe entire circumference of said chamber and pass around said grooveinto the passage in said chamber.

'7. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to form a continuation of said stem andhaving a comparatively small draft passage therethrough, a chamber insaid bowl for receiving tobacco, a comparatively large passage extendingfrom said chamber into said stem and a larger passage extending outwardin said stem some distance from said chamber, a mem ber having a boretherethrough alined with the opening in said mouthpiece disposed in saidlarger passage and having means engaging a portion of said stem fordetermining its longitudinal position in said stem, said member having aportion threaded into said second mentioned passage, said bowl having anannular groove in the wall of said chamber, the same alining with thebore in said member, said member having a portion thereof terminating atsaid groove whereby air may be drawn down around the entire wall of saidchamber and pass around said groove and into said bore.

8. The structure set forth in claim 7, said member having anotherportion extending from said portion inwardly into said chamber abovesaid bore, above said groove and above the bottom of said chamber, thesame acting as a guard for the end of said bore.

9. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to form a continuation of said stem andhaving a comparatively small draft passage therethrough,'a chamber insaid bowl for receiving tobacco, a comparatively large passage extendingfrom said chamber into said stem and a tubular member secured in saidmouthpiece having a comparatively small draft passage therethroughalined with and forming a continuation of said draft passage in saidmouthpiece, said member being insertable in said stem and having aportion extending through and fitting said first mentioned passage, saidportion and passage therethrough terminating substantially at the wallof said chamber, said member having another portion extending from thetop part of said portion and projecting into said chamber andterminating substantially at the center thereof.

10. The structure set forth in claim 9, said last mentioned portionhaving its terminal end bent downwardly toward the bottom of saidchamber.

11. A pipe structure having in combination, a bowl with a stem attachedthereto, a mouthpiece arranged to form a continuation of said stem andhaving a comparatively small draft passage therethrough, a chamber insaid bowl for reoeiving tobacco, a passage extending from said chamberinto said stem, a member having a bore therethrough alined with theopening in said mouthpiece disposed in said stem and having meansengaging a portion of said stem for determining its longitudinalposition in said stem, said member having a portion disposed in saidsecond mentioned passage, said bowl having an annular groove in the wallof said chamber adjacent the bottom thereof, the same alining with thebore in said member, said member having a portion thereof terminating atsaid groove whereby air may be drawn down around the entire wall of saidchamber and pass around said groove and into said bore.

ALBERT L. VOGEL.

